Webflow API and Documentation Custom Code API

Custom code is JavaScript that is added to your Webflow site.

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OpenAPI Specification

webflow-api-and-documentation-webflow-custom-code-api-openapi.yml Raw ↑
openapi: 3.1.0
info:
  title: Webflow Collections Asset Folders Custom Code API
  description: Webflow Data API v2 - Collections endpoints.
  version: 2.0.0
  contact:
    name: Webflow Developer Relations
    email: developers@webflow.com
    url: https://developers.webflow.com
  termsOfService: https://webflow.com/legal/terms
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
- url: https://api.webflow.com/v2
  description: Webflow API v2
  x-fern-server-name: Data API
security:
- OAuth2: []
- ApiKey: []
tags:
- name: Custom Code
  description: Custom code is JavaScript that is added to your Webflow site.
paths:
  /pages/{page_id}/custom_code:
    get:
      x-fern-sdk-group-name:
      - pages
      - scripts
      x-fern-sdk-method-name: get-custom-code
      security:
      - OAuth2:
        - custom_code:read
      operationId: get-page-custom-code
      summary: Webflow Get Custom Code
      description: 'Get all scripts applied to a page.


        Required scope | `custom_code:read`

        '
      tags:
      - Custom Code
      parameters:
      - name: page_id
        in: path
        description: Unique identifier for a Page
        example: 63c720f9347c2139b248e552
        required: true
        schema:
          type: string
          format: objectid
          default: null
      responses:
        '200':
          description: Request was successful
          content:
            application/json:
              schema:
                type: object
                properties:
                  scripts:
                    type: array
                    description: A list of scripts applied to a Site or a Page
                    items:
                      type: object
                      required:
                      - id
                      - version
                      - location
                      properties:
                        id:
                          description: ID of the registered custom code script
                          type: string
                          format: objectId
                        location:
                          description: Location of the script, either in the header or footer of the published site
                          type: string
                          default: header
                          enum:
                          - header
                          - footer
                        version:
                          type: string
                          description: Semantic Version String for the registered script *e.g. 0.0.1*
                        attributes:
                          type: object
                          description: Developer-specified key/value pairs to be applied as attributes to the script
                      example:
                      - id: cms_slider
                      - location: header
                      - version: 1.0.0
                  lastUpdated:
                    type: string
                    format: date-string
                    readOnly: true
                    description: Date when the Site's scripts were last updated
                  createdOn:
                    type: string
                    format: date-string
                    readOnly: true
                    description: Date when the Site's scripts were created
                example:
                  scripts:
                  - id: cms_slider
                    location: header
                    version: 1.0.0
                    attributes:
                      my-attribute: some-value
                  - id: alert
                    location: header
                    version: 0.0.1
              example:
                value:
                  scripts:
                  - id: cms_slider
                    location: header
                    version: 1.0.0
                    attributes:
                      my-attribute: some-value
                  - id: alert
                    location: header
                    version: 0.0.1
                    attributes: {}
                  lastUpdated: '2022-10-26T00:28:54.191Z'
                  createdOn: '2022-10-26T00:28:54.191Z'
        '400':
          description: Request body was incorrectly formatted.
          x-logErrorCode: 400
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: bad_request
                message: 'Bad Request: Request is malformed'
                externalReference: null
                details: []
        '401':
          description: Provided access token is invalid or does not have access to requested resource
          x-logErrorCode: 401
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: not_authorized
                message: Request not authorized
                externalReference: null
                details: []
        '404':
          description: Requested resource not found
          x-logErrorCode: 404
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: resource_not_found
                message: 'Requested resource not found: The site cannot be found'
                externalReference: null
                details: []
        '429':
          description: The rate limit of the provided access_token has been reached. Please have your application respect the X-RateLimit-Remaining header we include on API responses.
          x-logErrorCode: 429
          headers:
            X-RateLimit-Remaining:
              description: Contains the number of available requests remaining in the current minute
              schema:
                type: number
            X-RateLimit-Limit:
              description: Contains your current overall rate limit per minute
              schema:
                type: number
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: too_many_requests
                message: Too many requests
                externalReference: null
                details: []
        '500':
          description: We had a problem with our server. Try again later.
          content:
            application/json:
              x-logErrorCode: 500
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: internal_error
                message: An Internal Error occurred
                externalReference: null
                details: []
    delete:
      x-fern-sdk-group-name:
      - pages
      - scripts
      x-fern-sdk-method-name: delete-custom-code
      security:
      - OAuth2:
        - custom_code:write
      operationId: delete-page-custom-code
      summary: Webflow Delete Custom Code
      description: 'Remove all scripts from a page applied by the App. This endpoint will not remove scripts from the site''s registered scripts.


        To remove individual scripts applied by the App, use the [Add/Update Custom Code](/data/reference/custom-code/custom-code-pages/upsert-custom-code) endpoint.


        <Note>Access to this endpoint requires a bearer token obtained from an [OAuth Code Grant Flow](/data/reference/oauth-app).</Note>


        Required scope | `custom_code:write`

        '
      tags:
      - Custom Code
      parameters:
      - name: page_id
        in: path
        description: Unique identifier for a Page
        example: 63c720f9347c2139b248e552
        required: true
        schema:
          type: string
          format: objectid
          default: null
      responses:
        '204':
          description: Request was successful. No Content is returned.
        '400':
          description: Request body was incorrectly formatted.
          x-logErrorCode: 400
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: bad_request
                message: 'Bad Request: Request is malformed'
                externalReference: null
                details: []
        '401':
          description: Provided access token is invalid or does not have access to requested resource
          x-logErrorCode: 401
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: not_authorized
                message: Request not authorized
                externalReference: null
                details: []
        '404':
          description: Requested resource not found
          x-logErrorCode: 404
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: resource_not_found
                message: 'Requested resource not found: The site cannot be found'
                externalReference: null
                details: []
        '429':
          description: The rate limit of the provided access_token has been reached. Please have your application respect the X-RateLimit-Remaining header we include on API responses.
          x-logErrorCode: 429
          headers:
            X-RateLimit-Remaining:
              description: Contains the number of available requests remaining in the current minute
              schema:
                type: number
            X-RateLimit-Limit:
              description: Contains your current overall rate limit per minute
              schema:
                type: number
          content:
            application/json:
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - item_not_found
                    - missing_scopes
                    - no_domains
                    - not_authorized
                    - not_enterprise_plan_site
                    - not_enterprise_plan_workspace
                    - order_not_found
                    - resource_not_found
                    - too_many_requests
                    - unsupported_version
                    - unsupported_webhook_trigger_type
                    - user_limit_reached
                    - user_not_found
                    - users_not_enabled
                    - validation_error
                  message:
                    type: string
                    description: Error message
                    example: Request not authorized
                  externalReference:
                    type: string
                    description: Link to more information
                    example: ''
                  details:
                    type: array
                    description: Array of errors
                    items:
                    - type: string
                      example: Invalid email address
                      description: Error message
                    - type: object
                      example:
                        field: email
                        message: Invalid email address
                      description: Error message
                    example: []
              example:
                code: too_many_requests
                message: Too many requests
                externalReference: null
                details: []
        '500':
          description: We had a problem with our server. Try again later.
          content:
            application/json:
              x-logErrorCode: 500
              schema:
                type: object
                example:
                  code: not_authorized
                  message: Request not authorized
                  externalReference: null
                  details: []
                properties:
                  code:
                    type: string
                    description: Error code
                    example: not_authorized
                    enum:
                    - bad_request
                    - collection_not_found
                    - conflict
                    - duplicate_collection
                    - duplicate_user_email
                    - ecommerce_not_enabled
                    - forbidden
                    - forms_require_republish
                    - incompatible_webhook_filter
                    - internal_error
                    - invalid_auth_version
                    - invalid_credentials
                    - invalid_domain
                    - invalid_user_email
                    - ite

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# Full source: https://raw.githubusercontent.com/api-evangelist/webflow-api-and-documentation-webflow/refs/heads/main/openapi/webflow-api-and-documentation-webflow-custom-code-api-openapi.yml